IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: mz on May 15, 2010, 11:27:08 am

Title: cie chemistry practical help
Post by: mz on May 15, 2010, 11:27:08 am

if anybody has some time saving tips and some tips on salt analysis, please post them asap!!!

Title: Re: cie chemistry practical help
Post by: inuyashazaq on May 15, 2010, 12:46:48 pm

Quote from: mz on May 15, 2010, 11:27:08 am

if anybody has some time saving tips and some tips on salt analysis, please post them asap!!!

I think you are doing P3...
I remember there is a table in the end of the papers, which gives some reactions when something is added into ions
just find the reagent which can distinguish these ions, do the experiment and you can see ppts or other observations
be careful about "excess", especially for NH3, add it drop by drop

Title: Re: cie chemistry practical help
Post by: gold_wings on May 15, 2010, 12:52:56 pm

Salt analysis is mostly used in paper 6, not paper 3.
I believe you can find the tests on page 26 of the Chemistry syllabus.

Title: Re: cie chemistry practical help
Post by: mz on May 15, 2010, 01:00:36 pm

ok thanx...yes, i'm doing paper 33

Title: Re: cie chemistry practical help
Post by: inuyashazaq on May 16, 2010, 05:57:40 am

Quote from: gold_wings on May 15, 2010, 12:52:56 pm

Salt analysis is mostly used in paper 6, not paper 3.
I believe you can find the tests on page 26 of the Chemistry syllabus.

Well...I am doing A2...but i know P6 is about application, and it was canceled from 2007,